Air supplementing structure and compressor

Abstract

The utility model relates to compressor and injection machine technical field especially, a kind of air supplement structure and compressor.It is arranged in shell, intermediate plate is arranged between first cylinder and second cylinder, the side wall of intermediate plate is provided with flat air supplement hole, first gasket is spaced apart and provided with several first through holes, several first through holes and several air supplement pipe are one-to-one correspondence arrangement, first gasket is embedded in flat air supplement hole, and it is sealingly connected with inner wall, one end of air supplement pipe is communicated with air supplement liquid reservoir, the other end of air supplement pipe is communicated with flat air supplement hole by first through hole.Compared with prior art, by setting up several air supplement pipe and being provided with flat air supplement hole in intermediate plate, it can improve air supplement amount under the condition that the thickness of intermediate plate is not enough, enough gas can be provided to first cylinder and second cylinder, ensure that compressor works normally, improve the reliability of compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor and jet engine technology, and in particular to an air replenishment structure and compressor. Background Technology

[0002] In the existing technology, due to the small thickness of the intermediate plate, when the intermediate plate is used for dual-cylinder air replenishment, the replenishment volume cannot meet the needs of the dual cylinders, resulting in insufficient air volume in the dual cylinders, which affects the normal operation of the compressor and reduces the reliability of the compressor.

[0003] Therefore, there is an urgent need for a gas supply structure and compressor to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to propose a gas supply structure and compressor that can provide sufficient gas to the dual cylinders, ensuring the normal operation of the compressor and improving its reliability.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An air-injection structure includes: a housing, a first cylinder, a second cylinder, an intermediate plate, an air-injection reservoir, a first liner, and a plurality of air-injection pipes. The first cylinder and the second cylinder are both disposed within the housing. The intermediate plate is disposed between the first cylinder and the second cylinder. The side wall of the intermediate plate is provided with flat air-injection holes. The first liner is provided with a plurality of first through holes at intervals. The plurality of first through holes are correspondingly arranged with a plurality of air-injection pipes. The first liner is embedded in the flat air-injection holes and is sealed to its inner wall. One end of the air-injection pipe is connected to the air-injection reservoir, and the other end of the air-injection pipe is connected to the flat air-injection hole through the first through hole.

[0007] As a preferred embodiment of the above-mentioned gas replenishment structure, the gas replenishment structure further includes a seat ring, which is disposed between the housing and the gas replenishment reservoir. The gas replenishment reservoir is provided with a gas outlet pipe, and a plurality of gas replenishment pipes are connected to the gas outlet pipe, which is connected to the seat ring.

[0008] As a preferred technical solution of the above-mentioned air replenishment structure, the air replenishment structure further includes a second liner, which is disposed inside the seat ring. The second liner is provided with a plurality of second through holes at intervals. The plurality of second through holes are provided in a one-to-one correspondence with a plurality of air replenishment pipes. The other end of the air replenishment pipe passes through the second through hole, the housing and the first through hole in sequence and communicates with the air replenishment hole.

[0009] As a preferred embodiment of the aforementioned air-filling structure, the second liner is welded to the seat ring.

[0010] As a preferred technical solution of the above-mentioned air replenishment structure, the seat ring includes a first connecting part and a second connecting part that are interconnected. The outer ring of the first connecting part is provided with a protrusion, which is fixedly connected to the housing. The second connecting part is inserted into the first connecting part, and the air outlet pipe is inserted into the second connecting part.

[0011] As a preferred embodiment of the above-mentioned air replenishment structure, the end of the air outlet pipe connected to the seat ring is designed with a constricted opening, including a circular pipe and a constricted pipe that are interconnected, and the outer wall of the circular pipe is sealed to the inner wall of the seat ring.

[0012] As a preferred technical solution of the above-mentioned air replenishment structure, the air replenishment hole is waist-shaped, and the plurality of air replenishment tubes are capillary tubes.

[0013] As a preferred technical solution of the above-mentioned air-replenishing structure, the first liner is interference-fitted or welded to the inner wall of the air-replenishing hole.

[0014] As a preferred embodiment of the aforementioned gas replenishment structure, the gas replenishment pipe is interference-fitted into the inner wall of the first through hole.

[0015] A compressor includes a motor assembly, a first piston, and a second piston. The compressor also includes the gas injection structure described in the preferred embodiment above. The first piston and the second piston are respectively disposed in a first cylinder and a second cylinder. Both the first piston and the second piston are drively connected to the motor assembly, and the motor assembly is capable of driving the first piston and the second piston to rotate in the first cylinder and the second cylinder, respectively.

[0016] The beneficial effects of this utility model are:

[0017] This utility model provides a gas-injection structure and a compressor. The gas-injection structure includes: a housing, a first cylinder, a second cylinder, an intermediate plate, a gas-injection reservoir, a first liner, and several gas-injection pipes. Both the first and second cylinders are housed within the housing. The intermediate plate is positioned between the first and second cylinders. The sidewall of the intermediate plate has flat gas-injection holes. The first liner has several first through holes spaced apart, each corresponding to a gas-injection pipe. The first liner is interference-fitted into the inner wall of the flat gas-injection holes. One end of each gas-injection pipe communicates with the gas-injection reservoir, and the other end passes through the housing and the first through holes to communicate with the flat gas-injection holes, thus supplying gas to the first and second cylinders. Compared to existing technologies, by opening flat gas-injection holes in the intermediate plate and providing several gas-injection pipes, the gas-injection volume can be increased even when the intermediate plate thickness is insufficient. This ensures sufficient gas supply to the first and second cylinders, guaranteeing normal compressor operation and improving compressor reliability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This is a first structural schematic diagram of the gas replenishment structure provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the second structure of the gas replenishment structure provided in this embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the intermediate plate provided in this embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first liner provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the seat ring provided in an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the connection between the intermediate plate and the seat ring provided in this embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the gas-replenishing liquid storage device provided in this embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of the air outlet pipe provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Shell; 2. Intermediate plate; 21. Flat air inlet; 3. Air inlet reservoir; 31. Air outlet pipe; 311. Round pipe; 312. Narrowed pipe; 4. First liner; 41. First through hole; 5. Air inlet pipe; 6. Seat ring; 61. First connecting part; 62. Second connecting part; 7. Second liner; 71. Second through hole; 8. Fixing component. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figures 1 to 8 As shown, this utility model provides a gas replenishment structure and a compressor. The gas replenishment structure includes: a housing 1, a first cylinder, a second cylinder, an intermediate plate 2, a gas replenishment reservoir 3, a first liner 4, and several gas replenishment pipes 5.

[0034] Specifically, both the first and second cylinders are housed within the casing 1. An intermediate plate 2 is positioned between the first and second cylinders. The sidewall of the intermediate plate 2 has flat air supply holes 21. A first liner 4 has several first through holes 41 spaced apart, each corresponding to a specific air supply pipe 5. The first liner 4 is embedded within the flat air supply holes 21 and sealed to its inner wall. One end of each air supply pipe 5 connects to an air supply reservoir 3, and the other end passes through the casing 1 and the first through holes 41 to connect to the flat air supply holes 21, thus supplying air to the first and second cylinders. Compared to existing technologies, by opening flat air supply holes 21 and providing several air supply pipes 5 in the intermediate plate 2, the air supply volume can be increased even when the thickness of the intermediate plate 2 is insufficient. This ensures sufficient gas supply to the first and second cylinders, guaranteeing normal compressor operation and improving compressor reliability. Furthermore, the air supply pipes 5 are interference-fitted into the inner wall of the first liner 4, improving the sealing performance of the air supply structure. In this embodiment, the first liner 4 is a plastic part. Of course, in some other embodiments, the first liner 4 may also be other non-metallic or metallic parts, which will not be described in detail here.

[0035] Furthermore, the air supply pipe 5 is interference-fitted into the inner wall of the first through hole 41.

[0036] Optionally, the air replenishment structure also includes a seat ring 6, which is disposed between the housing 1 and the air replenishment reservoir 3. The air replenishment reservoir 3 is provided with an air outlet pipe 31, and several air replenishment pipes 5 are connected to the air outlet pipe 31. The air outlet pipe 31 is connected to the seat ring 6. Specifically, the seat ring 6 includes a first connecting part 61 and a second connecting part 62 that are interconnected. The inner diameter of the first connecting part 61 is larger than the outer diameter of the second connecting part 62. The outer ring of the first connecting part 61 has a protrusion, which can increase the connection area between the first connecting part 61 and the housing 1 and improve the stability of the connection between the first connecting part 61 and the housing 1.

[0037] Furthermore, the air replenishment structure also includes a second liner 7, which is disposed within the seat ring 6. The second liner 7 has several second through holes 71 spaced apart, each corresponding to a specific air replenishment pipe 5. The other end of the air replenishment pipe 5 passes sequentially through the second through holes 71, the housing 1, and the first through hole 41, communicating with the air replenishment hole 21. Specifically, the second liner 7 is embedded within the second connecting portion 62, and the second liner 7 is welded and fixed to the second connecting portion 62, further sealing and fixing the air replenishment pipe 5. The second connecting portion 62 has several second through holes 71, and the air replenishment reservoir 3 is connected to the second connecting portion 62. The air replenishment pipe 5 is press-fitted into the corresponding second through hole 71, which can fix the air replenishment pipe 5 and ensure sealing.

[0038] Furthermore, the second liner 7 is made of metal. Specifically, in this embodiment, the second liner 7 is made of copper. Of course, in other embodiments, the second liner 7 may also be made of other metals such as iron or aluminum, which will not be elaborated here.

[0039] Optionally, the end of the vent pipe 31 connected to the seat ring 6 is constricted, including a circular pipe 311 and a constricted pipe 312 that are interconnected. The outer wall of the circular pipe 311 is sealed to the inner wall of the seat ring 6. Specifically, the air supply pipe 5 passes through the constricted pipe 312, and the constricted pipe 312 is inserted into the second connecting part 62. At the same time, the circular pipe 311 is welded to the second connecting part 62. To prevent air leakage at the interference fit between the air supply pipe 5 and the second liner 7 due to high refrigerant pressure in the air supply reservoir 3, the tail end of the vent pipe 31 of the air supply reservoir 3 is constricted to achieve a throttling effect and prevent air leakage. Meanwhile, the circular pipe 311 of the air supply reservoir 3 is welded to the second connecting part 62 to improve the sealing performance.

[0040] Optionally, the air inlet 21 is waist-shaped, and the air inlet tubes 5 are capillary tubes; the first liner 4 is interference-fitted or welded to the inner wall of the air inlet 21.

[0041] Optionally, in this embodiment, the air replenishment structure is provided with three air replenishment pipes 5. Specifically, based on the size of the flat air replenishment hole 21, the air replenishment structure is provided with three air replenishment pipes 5, corresponding to three first through holes 41 and three second through holes 71. Of course, in some other embodiments, the number of air replenishment pipes 5, first through holes 41, and second through holes 71 is determined according to the actual situation, and the three can be set accordingly, which will not be elaborated here.

[0042] Optionally, the gas replenishment structure also includes a fixing member 8, which is connected between the housing 1 and the gas replenishment reservoir 3. Specifically, in order to improve the stability of the gas replenishment reservoir 3, the housing 1 and the gas replenishment reservoir 3 are provided with a fixing member 8, which can improve the stability of the connection between the housing 1 and the gas replenishment reservoir 3 and prevent the housing 1 from separating from the gas replenishment reservoir 3.

[0043] This utility model also provides a compressor, including a motor assembly, a first piston and a second piston. The compressor also includes the air replenishment structure in the above embodiment. The first piston and the second piston are respectively disposed in the first cylinder and the second cylinder. The first piston and the second piston are both connected to the motor assembly for transmission, and the motor assembly can drive the first piston and the second piston to rotate in the first cylinder and the second cylinder respectively. The compressor also includes other essential components that make up a compressor in the prior art.

[0044] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A gas-replenishing structure, characterized in that, include: The system comprises a housing (1), a first cylinder, a second cylinder, an intermediate plate (2), a gas reservoir (3), a first liner (4), and several gas supply pipes (5). The first cylinder and the second cylinder are both located inside the housing (1). The intermediate plate (2) is located between the first cylinder and the second cylinder. The side wall of the intermediate plate (2) is provided with a flat gas supply hole (21). The first liner (4) is provided with several first through holes (41) spaced apart. The several first through holes (41) are provided one-to-one with the several gas supply pipes (5). The first liner (4) is embedded in the flat gas supply hole (21) and is sealed to its inner wall. One end of the gas supply pipe (5) is connected to the gas reservoir (3), and the other end of the gas supply pipe (5) is connected to the flat gas supply hole (21) through the first through hole (41).

2. The gas-replenishing structure according to claim 1, characterized in that, The gas replenishment structure also includes a seat ring (6), which is disposed between the housing (1) and the gas replenishment reservoir (3). The gas replenishment reservoir (3) is provided with an air outlet pipe (31), and a plurality of gas replenishment pipes (5) are connected to the air outlet pipe (31). The air outlet pipe (31) is connected to the seat ring (6).

3. The gas-replenishing structure according to claim 2, characterized in that, The air replenishment structure also includes a second liner (7), which is disposed inside the seat ring (6). The second liner (7) has a plurality of second through holes (71) spaced apart. The plurality of second through holes (71) are corresponding to a plurality of air replenishment pipes (5). The other end of the air replenishment pipe (5) passes through the second through hole (71), the housing (1) and the first through hole (41) in sequence and communicates with the air replenishment hole (21).

4. The gas-replenishing structure according to claim 3, characterized in that, The second liner (7) is welded to the seat ring (6).

5. A gas-replenishing structure according to claim 2 or 3, characterized in that, The seat ring (6) includes a first connecting part (61) and a second connecting part (62) that are interconnected. The outer ring of the first connecting part (61) is provided with a protrusion, which is fixedly connected to the housing (1). The second connecting part (62) is inserted into the first connecting part (61), and the air outlet pipe (31) is inserted into the second connecting part (62).

6. A gas-replenishing structure according to claim 2 or 3, characterized in that, The end of the air outlet pipe (31) connected to the seat ring (6) is constricted, including a circular pipe (311) and a constricted pipe (312) that are interconnected. The outer wall of the circular pipe (311) is sealed to the inner wall of the seat ring (6).

7. The gas-replenishing structure according to claim 1, characterized in that, The air inlet (21) is waist-shaped, and several of the air inlet tubes (5) are capillaries.

8. The gas-replenishing structure according to claim 1, characterized in that, The first liner (4) is press-fitted or welded to the inner wall of the air filling hole (21).

9. The gas-replenishing structure according to claim 1, characterized in that, The air supply pipe (5) is interference-fitted into the inner wall of the first through hole (41).

10. A compressor comprising a motor assembly, a first piston, and a second piston, the compressor further comprising a gas supply structure as described in any one of claims 1-9, characterized in that, The first piston and the second piston are respectively disposed in the first cylinder and the second cylinder. The first piston and the second piston are both connected to the motor assembly for transmission, and the motor assembly can drive the first piston and the second piston to rotate in the first cylinder and the second cylinder respectively.

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